help please Parenthesis equilibrated 2 days un this lesson

Question

https://code.sololearn.com/cMeJ5wCU90s1/?ref=app

Answer 1

class Stack:
def __init__(self):
self.items = []

def is_empty(self):
return self.items == []

def push (self,item):
self.items.insert(0,item)

def pop(self):
return self.items.pop(0)

def stack(self):
return self.items

def balanced (expression):
s = Stack()
for i in expression:
if i == "(":
s.push(i)
if i == ")":
if "(" in s.stack():
s.pop()
else:
return False

if not s.stack():
return True

else:
return False

print(balanced (input ()))

Answer 2

If there was more to edit, such as erasing lines, I would have said so :)

Answer 3

This is what you logically want to do

if i == ")":
if not "(" == s.pop():
return False

You just need to add a stack underflow protection.

Answer 4

I dont see that working can u edit

Answer 5

if i == ")":
if "(" in s.stack():
s.pop()
else:
return False

Answer 6

Thanks for trying yo help but you understand that the Code os long and It doesnt if ill erase the resto off lines ir what thats why there is a edit buttom to check

Answer 7

Now you lost me XD Too much auto-correction. I'm not sure what you want to say ...

Answer 8

Kakssjsj recently i erase all my phone data

Answer 9

Just edit the code to see that working I don't know if I have to erase the rest of lines

Answer 10

That code and giving minor error was so frustrating